com.mailcheer/mailcheer

up checked 2026-11-11T02:37:38.984Z

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Publisher-provided title

Mailcheer

Publisher-provided description

Email API + newsletters. 17 MCP tools. OAuth 2.1 PKCE or API key. EU-hosted (Hetzner + SES).

Summary by lookupd

Send transactional and campaign emails, manage subscribers, tags and suppression lists, and check delivery stats for a workspace.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http mailcheer https://mailcheer.com/api/mcp

Codex, remote (streamable-http)

codex mcp add mailcheer --url https://mailcheer.com/api/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "mailcheer": {
      "url": "https://mailcheer.com/api/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (19 tools)

Publisher-provided text

• send_email Sends a single (transactional) email to one or more addresses. The sender must belong to a verified domain of the workspace — call get_account to see which ones
• get_account Returns the workspace this key grants access to, its scopes, plan, remaining emails this month (queued sends included), when the counter resets, billing status,
• list_subscribers Lists the workspace's subscribers, page by page. Use `cursor` with the `next_cursor` value from the response to get the next page. `status` filters on subscribe
• add_subscriber Adds or updates a subscriber. By default the person enters as PENDING and receives a confirmation email: that is double opt-in, and it protects the workspace's
• remove_subscriber Unsubscribes an address and adds it to the workspace's suppression list: no more campaigns, automations, or sends carrying `unsubscribe_url`. The record is not
• update_subscriber Updates the first name (`first_name`), last name (`last_name`) and custom fields (`fields`, by technical key) of an existing subscriber. The email address canno
• list_tags The workspace's tags, with how many subscribers carry each one (`subscribers`) and, among them, the active ones (`subscribed`). Read this before tagging: reuse
• tag_subscriber Adds (`add`) and removes (`remove`) tags on ONE existing subscriber, and nothing else: no subscription, no confirmation email, no status touched. Prefer it to a
• erase_subscriber Erases a person from the workspace at THEIR request (right to erasure): record, name, fields, proof of consent, tags. Statistics of campaigns already sent do no
• list_suppression Suppressed addresses, with their reason: bounced, complained or manually suppressed (nothing goes to them), or unsubscribed (no more campaigns, automations, or
• add_suppression Adds an address to the workspace's suppression list. By default (`manual`), it will receive nothing further, neither campaigns nor individual emails; with `unsu
• list_campaigns The workspace's campaigns, from newest to oldest, with their status: draft, scheduled, sending, or sent.
• create_campaign Creates a DRAFT. Nothing is sent: you then need to call send_campaign, or send it from the Mailcheer workspace. Content is written in plain text in `text` — a b
• update_campaign Edits a DRAFT: name, subject, preheader, kind, sender, content (`text`). Nothing is sent. Prefer it to create_campaign to rework a text: otherwise the old draft
• preview_campaign_send Read-only: nothing is sent. Returns exactly what send_campaign would do right now — would it go out (and if not, why), and how many people would receive it. Wit
• send_campaign ⚠️ IRREVERSIBLE. Locks the recipient list and triggers sending to ALL active subscribers in the workspace — or, with `to`, only to the requested addresses that
• get_campaign_stats Status and figures for a campaign: recipients, sent, delivered, opened, clicked, bounced, complained. Rates are calculated on delivered messages, not on recipie
• get_email Status of an email sent via send_email: sent, delivered, bounced, or complained. Amazon's delivery callback arrives a few seconds to a few minutes after sending
• verify_email Verifies one or more addresses (up to 100) BEFORE writing to them, without sending anything: syntax, a domain that receives mail, a mailbox that already hard-bo

Details

• Version: 1.1.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 784 ms
• First indexed: 2026-11-01T08:55:07.668Z
• Last seen in registry: 2026-11-01T08:55:07.687Z
• Website: https://mailcheer.com/docs/api

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